Dear Mr. Conrad,
Thank you for posting your inquiry on History Hub!
We searched the National Archives Catalog for records relating to your inquiry but were unable to locate the report you are interested in.
As stated in the response to your inquiry by one of RDT2 reference archivists, records released to the public by the Office of the Secretary of Defense (OSD) are not automatically accessioned to the National Archives and might be still in the custody of the OSD.
However, we located a digital copy of a publication by Charles H. Murphy and Gary Lee Evans titled “U.S. Military Personnel Strengths by Country of Location since World War II, 1948-1973” at the University of North Texas Digital Library.
We hope this information is helpful. Best of luck with your research!